BioScience Talks

BioScience Talks , published by the American Institute of Biological Sciences, is the monthly discussion podcast of the journal BioScience.
AIBS is a registered US 501c3 nonprofit organization, EIN: 53-0220853.

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Hydropower dams generate more energy than all other renewable sources combined. However, they can also produce dire environmental consequences, including the devastation of aquatic insect populations and the food webs that those insects underpin. A practice called "hydropeaking" is evidently to blame. By altering river flows to meet power-generation needs, hydropeaking generates artificial tides that extirpate insect species. In this episode of BioScience Talks, we're joined by Dr. Ted Kennedy, a research ecologist with the US Geological Survey's Grand Canyon Monitoring and Research Center. In this month's BioScience, he and his colleagues describe the underlying phenomenon and the citizen science project that brought it to light. In our discussion, Dr. Kennedy explains his findings and offers possible solutions to the hydropeaking conundrum.

With MZ Jacobson and followers calling for a 15-fold increase in load-following hydroelectric capacity to supplement variable renewable generation the habitat effects need to be more widely known. For proposed increase in hydropeaking see analysis in: www.pnas.org/content/114/26/6722.full
Is there a best reference or review for ecological impacts of hydropeaking?